| ECOM | EPOC Component Object Model Enables resolution and loading of C++ interface implementations at run-time |
| EPOC | C++ operating system developed by Symbian for hand-held wireless information devices. It includes a suite of personal information management, productivity, and communication applications. |
| MIME | Multi-Purpose Internet Mail Extensions |
| NP | Netscape Plug-in |
| NPN | Interface called by the plug-in to communicate with the browser |
| NPP | Interface called by the browser to perform operations on the plug-in |
| UA | User Agent |
| URI | Uniform Resource Identifier |
| URL | Uniform Resource Locator |